Machine for decorticating manila fiber, &amp;c.



No. 857.386. PATENTED JUNE 18, 1907:

G. E. BAILEY. MACHINE FOR DEGORTIGATING MANILA FIBER, 8w.

APPLIOATION FILED 00122. 1906.

WITNES$ES 5% v V 'INVENTOR 2%; a; l wim. 5a; A'fa2Mz (27 ATTO RHEYS UNITE STATES PATENT oFFion.

CAROLUS F. DAILEY, OF BROOKLYN, NEW YORK.

MACHINE FOR DECORTIOATING MANILA FIBER, 800.

Specification of Letters Patent.

Patented June 18, 1907.

Application filed October 22,1906. Serial No. 340,029.

or leaves in the preparation of the fibers for use.

My invention has special reference to an improvement in the blades used in decorticating machines such as that described in my Patent No. 815,799.

In the accompanying drawings Figure 1 is a vertical section of the blade-bearing jaws of a machine showing 'my improved knife in place; and Fig. 2 is a front elevation of the same.

Referring to the drawings I show the .knife jaws 1 ahdfZ pivoted to the frame of the machine and provided with meshing pinions on the angle arms 8 and 4. The blade 5 of the upper aw is normally held against the lower blade 6 by the action of the spring 7 secured to the two jaws at 8 and 9. The tension of this spring may be regulated by the nuts 10. Rollers 11 and 12 operate to pull the fibrous bark or like material between the jaws in the direction of the arrow 13. Means 14 are provided for opening the knife jaws against the action of the spring 7.

It will be noted that I mount the upper blade 5 adjustably upon the backing plate 17 by means of screw threaded bolts 18 carried by the blade andworking within a hug 19 on the backing plate. The adjustment is secured by means of the nut 20, while the blade is made firm to the backing plate after adjustment, through bolts and nuts 21 which pass through holes in the backing plate and slots 22 in the blade. It is also apparent from Fig. 1 that v the blades are set at an angle to and not directly acrossthe grain of the fiber asit is drawn between them, by the rollers 11 and 12, and by this means I secure York, have in the peculiarly effectivescraping motion pointedout in my patent above referred to.

The machine described in my Patent No. 815799 has heretofore been provided with blades having flat scraping edges. I have found that a great improvement in the op-.

eration of the machine is effected by serrating the edge of one blade with fine teeth 15, providing the other blade with a groove 16 and adjusting the two blades so that the serrated edge of one enters the groove of the other. With these improved blades not only is the outer pulp and skin scraped ofi, but

the material is shredded, the fibers being separated and prepared for use in the single operation.

I claim as my invention 1. In a machine for decorticating Manila or other fibers, decorticating parts consisting of a blade having a grooved edge and a blade having a sharpened edge adapted to 00613- erate with the grooved blade in combination with means tending to hold said blades con.- stantly in uXtaposition.

2. In-a machine for decorticating Manila or other fibers, decorticating parts consisting of a blade having a sharpened serrated edge and a blade having a grooved edge adapted ,to cooperate with said sharpened blade.

3. In a machine for decorticating Manila or other fibers, decorticating parts consisting of a blade having a grooved edge and a blade having a sharpened serrated edge adapted to cooperate with the grooved blade, said blades being set at other than a right angle 1 to the direction of pulls of the fiber passing between said blades.

4. In a machine for decorticating Manila or other fibers, decorticating parts consisting of a blade having a grooved edge and a blade having a sharpened serrated edge adapted to cooperate with the grooved blade, and

means tending to keep said blades constantly in juxtaposition.

5. In a machine for decorticating Manila or other fibers, decorticating parts consisting of a blade having a grooved edge and a blade having a sharpened serrated edge adapted tocooperate with the grooved blade, and spring means'tending to keep said blades constantly in juxtaposition.

6. In a machine for decorticating Manila ioo and other fibers, decorticating parts consistl name'to this specification, in the presence oiing of a blade having a grooved edge and a two subscribing witnesses. blade having a sharpened serrated edge adjustably secured to a backing plate and CAROLUS. BAILEY 5 adapted to cooperate with the grooved blade, Witnesses:

substantially as described. ARTHUR H. FOLGER,

In testimony whereof I have signed my WILLIAM ABBE. 

